▎ 摘　　要

NOVELTY - Synthesizing exfoliated doped graphene nano-platelets from doped graphene ceramic composite, comprises: washing and annealing particulate ceramic material for surface activation and removal of contaminants; coating and carbonizing annealed particulate ceramic material with carbon source/precursors; functionalizing annealed particulate ceramic material in presence of graphene to obtain graphene ceramic composite; doping the graphene ceramic composite with dopant precursor; exfoliating the doped graphene ceramic composite by ultra-sonication and centrifugation to obtain graphene nano-platelets; and reusing the particulate ceramic material again for the synthesis of graphene nano platelets. USE - The method is useful for synthesizing exfoliated doped graphene nano-platelets from doped graphene ceramic composite. ADVANTAGE - The method provides scaled-up yield, cost-effective and eco-friendly approach for synthesis of graphene derivatives with tunable dopant type, functional moiety and concentration. DETAILED DESCRIPTION - Synthesizing exfoliated doped graphene nano-platelets from doped graphene ceramic composite, comprises: washing and annealing particulate ceramic material for surface activation and removal of contaminants, where the annealing of the particulate ceramic material is performed at a temperature of 200 degrees C; coating and carbonizing annealed particulate ceramic material with carbon source/precursors, where the carbon source comprises sucrose, fructose, lactose, coal tar, asphalt and recycled plastic; functionalizing annealed particulate ceramic material in presence of graphene to obtain graphene ceramic composite, where the graphene ceramic composite are subjected to graphitization, and the functionalization comprises incorporating dopant in the graphene ceramic composite, and the carbonization of coated ceramic material is performed at a temperature range of 200-400 degrees C, and the graphitization is performed at a temperature range of 600-950 degrees C under atmospheric temperature; doping the graphene ceramic composite with dopant precursor; exfoliating the doped graphene ceramic composite by ultra-sonication and centrifugation to obtain graphene nano-platelets; and reusing the particulate ceramic material again for the synthesis of graphene nano platelets.